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[Wiley数据库][2012]Morphology and Thermal/Mechanical Properties of Alkyl-Imidazolium-Treated Rectorite/
发布时间:2016-03-20 11:26:04 阅读次数:
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题名
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[Wiley数据库][2012]Morphology and Thermal/Mechanical Properties of Alkyl-Imidazolium-Treated Rectorite/Epoxy Nanocomposites
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参考引用方式
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Linxi Hou, Yan Liu. Journal of Applied Polymer Science, Vol. 126, 1572–1579 (2012)
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研究机构
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宁波大学
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所涉及离子液体
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研究领域
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新型累托石（OREC）；OREC/环氧树脂纳米复合材料；热/力学性能
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论文摘要
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A novel organic rectorite (OREC) was prepared by treating the natural sodium-rectorite (Na-REC) with ionic liquid 1-hexadecyl-3-methylimidazolium bromide ([C16mim]Br). X-ray diffraction (XRD) analysis showed that the interlayer spacing of the OREC was expanded from 2.23nm to 3.14nm. Furthermore, two types of OREC/epoxy nanocomposites were prepared by using epoxy resin (EP) as matrix, 2-ethyl-4-methylimidazole (2-E-4-MI) and tung oil anhydride (TOA) as curing agents, respectively. XRD and transmission electron microscope (TEM) analysis showed that the intercalated nanocomposite was obtained with addition of the curing agent 2-E-4-MI, and the exfoliated nanocomposite was obtained with addition of the curing agent TOA when the OREC content was less than 2 wt %. For the exfoliated nanocomposite, the mechanical and thermal property tests indicated that it had the highest improvement when OREC content was 2 wt% in EP. Compared to pure EP, 60.3% improvement in tensile strength, 26.7% improvement in bending strength, 34% improvement in bending modulus, 14℃improvement in thermal decomposition temperature (Td) and 5.7℃improvement in glass transition temperature (Tg) were achieved
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关键词
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epoxy resin; rectorite; ionic liquid; nanocomposites; morphology; thermal/mechanical properties
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